Thread: Vibration?

Results 1 to 7 of 7
  1. #1 Vibration? 
    SE Level Member
    Join Date
    Aug 2013
    Location
    mpls, mn
    Posts
    65
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    I lifted front end and put trans in gear to slowly turn wheels to check for possible wheel bearing issue. I got an immediate dash light for trac control and it felt like both tires/wheels were freaking out. The front end was actually shaking. I had foot on brake and slowly released brake pressure and car did NOT like it. Is this normal front end reaction to wheel spin? Tires are good, balanced, rims are fine, straight, I thnk.
    Reply With Quote  
     

  2. #2 Re: Vibration? 
    I live here. 02NavyBlue's Avatar
    Join Date
    Dec 2012
    Location
    Where 4T65E's were born
    Posts
    5,067
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    Chats
    22
    If one tire spins faster than another, traction control will try to straighten it out by means of applying the brakes. So when both wheels are up, naturally they won't spin at exactly the same speed since the resistance in the brakes or bearings will be a little different. Turn trac control off and it shouldn't do it anymore. The system isn't meant for the wheels to be in the air.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
    Reply With Quote  
     

  3. #3 Re: Vibration? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    21,030
    Thanks (Received)
    21
    Likes (Received)
    45
    Dislikes (Received)
    0
    Chats
    83662
    Its eaiser to just jack the front end up and spin the tire by hand while holding the spring to feel for a grinding wheel bearing.

    SMGPFC Member #1
    Reply With Quote  
     

  4. #4 Re: Vibration? 
    I live here. 02NavyBlue's Avatar
    Join Date
    Dec 2012
    Location
    Where 4T65E's were born
    Posts
    5,067
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    Chats
    22
    The wheel bearings are bad on our impala, they make a woowoowoo noise (gets worse on turns) and makes no noise when spinning by hand, and hardly noticeable play. Sometimes that's the only way to really tell, or just replace both fronts since they go in pairs anyway.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
    Reply With Quote  
     

  5. #5 Re: Vibration? 
    SE Level Member
    Join Date
    Aug 2013
    Location
    mpls, mn
    Posts
    65
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    Assumed trac cntl was the issue. Delete my stupd comment
    Last edited by cavell; 08-18-2013 at 03:33 PM.
    Reply With Quote  
     

  6. #6 Re: Vibration? 
    I live here. 02NavyBlue's Avatar
    Join Date
    Dec 2012
    Location
    Where 4T65E's were born
    Posts
    5,067
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    Chats
    22
    It is..Traction control is just the opposite (when accelerating)
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
    Reply With Quote  
     

  7. #7 Re: Vibration? 
    SE Level Member
    Join Date
    Aug 2013
    Location
    mpls, mn
    Posts
    65
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Chats
    0
    Brain lock. Trac cntl limits wheel spin during accel. For some reason, all I could think of was abs.
    Reply With Quote  
     

Similar Threads

  1. Vibration
    By RICHEYSGTP in forum Brakes/Suspension/Chassis
    Replies: 9
    Last Post: 11-04-2012, 12:58 PM
  2. help vibration
    By shawnheck03gtp in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 12
    Last Post: 05-12-2010, 06:03 AM
  3. Vibration
    By Klutch in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 0
    Last Post: 05-26-2009, 02:52 PM
  4. vibration
    By david hagaman in forum General Tech Discussion
    Replies: 1
    Last Post: 04-11-2009, 11:16 AM
  5. Vibration
    By silvertip in forum General Tech Discussion
    Replies: 0
    Last Post: 04-09-2009, 09:09 AM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •